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STM32F103xC 数据表(PDF) 55 Page - STMicroelectronics

部件名 STM32F103xC
功能描述  High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces
PDF  123 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32F103xC 数据表(HTML) 55 Page - STMicroelectronics

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STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
Doc ID 14611 Rev 7
55/123
Low-speed external user clock generated from an external source
The characteristics given in Table 22 result from tests performed using an low-speed
external clock source, and under ambient temperature and supply voltage conditions
summarized in Table 10.
Figure 20.
High-speed external clock source AC timing diagram
Table 22.
Low-speed external user clock characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fLSE_ext
User External clock source
frequency(1)
1.
Guaranteed by design, not tested in production.
32.768
1000
kHz
VLSEH
OSC32_IN input pin high level
voltage
0.7VDD
VDD
V
VLSEL
OSC32_IN input pin low level
voltage
VSS
0.3VDD
tw(LSE)
tw(LSE)
OSC32_IN high or low time(1)
450
ns
tr(LSE)
tf(LSE)
OSC32_IN rise or fall time(1)
50
Cin(LSE)
OSC32_IN input capacitance(1)
5pF
DuCy(LSE) Duty cycle
30
70
%
IL
OSC32_IN Input leakage current
VSS  VIN  VD
D
±1
µA
ai14143
OSC _IN
EXTER NAL
STM32F103xx
CLOCK SOURC E
VHSEH
tf(HSE)
tW(HSE)
IL
90%
10%
THSE
t
tr(HSE)
tW(HSE)
fHSE_ext
VHSEL



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